The Faithfull Diamond Folding Whetstone is a portable sharpening tool designed for tradespeople who need reliable blade maintenance on the job. This compact diamond whetstone features dual grit surfaces housed in a protective case that cleverly unfolds to form a sturdy handle during use. The dual-sided design provides 400 grit and 600 grit surfaces, offering coarse to medium sharpening capabilities suitable for general purpose applications. This makes it ideal for restoring edges on knives, scissors, cutting blades, and various tool materials including carbon steel, HSS and tungsten carbide tools. The folding case design allows the whetstone to be safely carried in a pocket or toolbag without risk of damage to the diamond surface or other equipment. For maximum convenience, this diamond whetstone can be used dry or with water as a lubricant, eliminating the need for oils and making it straightforward to maintain sharp tools wherever you're working. Features and Benefits:Protective f